The orchid Cattlianthe King's Serenade is a hybrid registered with the Royal Horticultural Society by W.Lawton in 1967. It is originated by Wm.Kirch Orchids
Top three species ancestors and their influences are

• Cattleya amethystoglossa (50.00%)  subgenus Intermediae
• Guarianthe aurantiaca (25.00%)  subgenus Circumvola  section: Aurantiacae 
• Guarianthe bowringiana (25.00%)  subgenus Circumvola  section: Moradae